Portable telephone



FIG. 1 is a perspective view of the portable telephone;

FIG. 2 is a front view of the portable telephone;

FIG. 3 is a back side view of the portable telephone;

FIG. 4 is a top view of the portable telephone;

FIG. 5 is a bottom view of the portable telephone;

FIG. 6 is a left side view of the portable telephone; and,

FIG. 7 is a right side view of the portable telephone. 

The new and ornamental design for a portable telephone, as shown and described. 